X-type pipeline layout energy feedback type hydraulic antilock brake system for electric vehicle

An energy feedback type, anti-lock braking technology, applied in hydraulic brake transmission, piping arrangement, brakes, etc., can solve the problem of low battery specific energy, achieve high feedback efficiency, feel good, and prolong driving. The effect of mileage

Active Publication Date: 2011-07-06
TSINGHUA UNIV
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Problems solved by technology

One of the key issues faced in the research of electric vehicles is the low specific energy of the batteries ava...

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  • X-type pipeline layout energy feedback type hydraulic antilock brake system for electric vehicle
  • X-type pipeline layout energy feedback type hydraulic antilock brake system for electric vehicle

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Embodiment Construction

[0009] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0010] Such as figure 1 As shown, the present invention includes, in the prior art, a pressure regulator with ABS function, a brake master cylinder 1, a liquid storage chamber 2, a master cylinder push rod vacuum booster 3, a pedal 4, a drive motor D, a brake Controller BCU, vehicle controller VCU. Among them, the ABS pressure regulator is an X-shaped pipeline arrangement: it includes the right front wheel-left rear wheel brake oil circuit and the left front wheel-right rear wheel brake oil circuit; each brake oil circuit includes two wheels Wheel cylinder, four solenoid valves, one check valve, one low pressure accumulator, one oil return pump and one high pressure damper, two brake oil circuits share one oil return motor, the specific settings are as follows:

[0011] Right front wheel-left rear wheel brake oil circuit includes: high pressure damp...

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Abstract

The invention relates to an X-type pipeline layout energy feedback type hydraulic antilock brake system (ABS) for an electric vehicle, which is characterized in that one oil outlet of a brake main cylinder is connected with a right front wheel and left rear wheel brake oil pipeline of a pressure regulator, the other oil outlet of the brake main cylinder is connected with a left front wheel and right rear wheel brake oil pipeline of the pressure regulator, a main cylinder pressure sensor is arranged on a pipeline connected with the brake main cylinder and the right front wheel and left rear wheel brake oil pipeline, two front wheel cylinders are respectively provided with a wheel cylinder pressure sensor; a high-speed switching valve is respectively additionally arranged between the right front wheel and left rear wheel brake oil pipeline and the brake main cylinder and between the left front wheel and right rear wheel brake oil pipeline and the brake main cylinder; and two high-speed switching valves and a medium-pressure energy accumulator are additionally arranged in a right front wheel brake pipeline and a left front wheel brake pipeline. The invention can realize integrated control of brake energy feedback and the ABS, improves the vehicle fuel economy, and improves the energy recovery efficiency in the brake process and can not affect the driving habit of a driver, thereby being capable of being widely applied to the vehicle.

Description

technical field [0001] The invention relates to a hydraulic braking anti-lock braking system for a vehicle, in particular to an X-shaped pipeline arrangement energy feedback type electric vehicle hydraulic braking anti-lock braking system suitable for a hybrid vehicle or a pure electric vehicle. Background technique [0002] It is an important technology to improve the energy utilization rate of electric vehicles to recover the kinetic energy dissipated during braking by controlling the power components of electric vehicles. In this process, the electric motor is used as a generator, and the recovered energy is stored in the battery in the form of electricity. One of the key issues faced during electric vehicle research is the low specific energy of the batteries available in the market today, so that the driving range of electric vehicles cannot be compared with that of gasoline vehicles. To solve this problem, in addition to making breakthroughs in the bottleneck technolo...

Claims

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Application Information

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IPC IPC(8): B60T11/16B60T11/224B60T13/74B60T17/04
Inventor 张俊智张彪吕辰苟晋芳孔德聪
Owner TSINGHUA UNIV
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